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Finding the Fourth Proportional to 2,999.29, 4,144.74 and 2,162.74

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Solution

The fourth proportional to 2,999.29, 4,144.74 and 2,162.74 is: 2,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.29 : 4,144.74 = 2,162.74 : x
  2. Step 2: Convert to fraction form
    2,999.29/4,144.74 = 2,162.74/x
  3. Step 3: Cross multiply
    2,999.29x = 4,144.74 × 2,162.74
  4. Step 4: Simplify right side
    2,999.29x = 8,963,994.99
  5. Step 5: Solve for x
    x = 8,963,994.99/2,999.29
  6. Step 6: Final answer
    x = 2,988.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.